Single-trigger firearm.



Patented Feb. I9, i901.

A. E. LARn.-

SINGLE TRIGGER FIREARM.

fApplicution filed June 21, 1899.\

2 Sheets-$heet l,

/Jmw 0mm No. 668,526. Patened Feb. I9, |901. A. E. LARI).

SINGLE TRGGER FlREABPv.

Applicatun led .Tune 21, 1899.

2 Sheets-Sheet 2,

(No Model.)

i 5&9@

llamen States srncroa'ron raming pm of Leners resent no. esame, dated,February i9, 190i.

Application led June21, 1899. serial No. 721,282. (No model.)

To all whom it may concern:

Be it knownthat I, `ALLAN EDWARD Lann, of St. Joseph, in the county ofBuchanan and State of Missourthave invented certain new and usefulImprovements in Firearms; and I do hereby declare that the following isa full,

clear, and exact description thereof, reference j'tion with a shotgunprovided withjwoshotbarrels and locks or tiring mechanisms embracing twohammers, together' withkmeans for actuating the same by successive pullson the trigger; The invention, however, may

be applied to firearms of other kinds and to those having more than twobarrels.

in the accompanying drawings, illustrat` ing my invention, Figure l isaview in side elevation of the breech mechanism of a double-barreiedshotgun made in accordance with myinvention. Fig. 2 isacross-scctionalview ,taken on line 2 2 of Fig. l. Figs. 3 and 1: are views showing themain parts of the firingmechanismnllustraingdifferentpositions ot' saidparts during the operation thereof. Fig. 5 is a detail pian section ofthe main parts shown in Fig. 1 on line 5 5 of Fig, 1. Fig. 6 is detailsection taken on line 6 of Fig. 5, showing in end View the deviceillustrated in Figs. l, 2, and 5 for changing the order in which. thebarrels are red. Fig. 7

is a bottoni plan view of the shifting-lugs shown in Fig. 6 removed fromthe other parts of the device.

As shown in the said drawings, .f-indicates the body or wooden portionof the gun-stock, E the frame, and C the barrels, which are pivoted tothe forward extension B of the frame.

E indicates the snap-lever by which the locking-deteut for holding thebarrels in ring-position is actuated. The loclgs are shown as eachconsisting of the usual hammer or tumbler F, mainspring F', sear F2, andsearspring F5.

which extend into a recess din'the extension D and which are actnated inthe'depression of the forward end of the barrels atthe time of loading,so as to cock or throw hack the hammers in the usual manner. j'

G indicates the trigger-plato, to which `the trigger is pivoted and uponwhich, in the par ticuiar instance illustrated,the 'main parts of theiiringmechanismare mounted.

The frame is provided inrits for- Ward'extension with two cooking-leversF4,

Now, referring to the firing mechanism by,"

which the sears F2 are actuated for releasing the hammers, the same is,in the particular embodiment of my invention herein'sh'own, constructedas follows Y on a pivot j, secured in au upwardly-projecting plate G'upon the trigger-plate. Said trigger is provided with arearwardly-extending trigger-blade J', which' projects rearwardlyoverthe trigger-.plate and is rigidly attached to andmovable with thetrigger.

Said trigger and trigger-b1ade have movable 7G J indicates the trigger,which is mounted connection with the pi votg` by means of a slot j',formed in the forward part oi the triggerblade and through which saidpivotj passes. Said slot permits a bodily backwaid-aiidfor ward movementof the trigger-blade and trigger. The trigger-blade is provided at itsrear portion with two laterally-projecting firingparts being so arrangedthat when the trigger trigger-plate is vadapted for contact with aforwardly -facing shoulder i2 on the lower margin of the trigger-bladewhen the saidI blade and the trigger are retracted or drawn. back insuch manner as to hold the said blade in its retracted position againstthe action of the spring J 2. In Fig. l the trigger-blade and Aholding-tooth g on the einer AVAILABLE -oorY trigger are shown as at therearward limit of their movement, with the holding-tooth g engaged withthe shoulder t7'2 and,l the forward end of the sl'otj' in contact withthe pivot j.

L is a detenta-arm rigidly attached to the trigger-blade the form of anintegral rearwardly-projecting prong or spur on the rear edge of saidblade. Said detent-arm is adapted for engagement 1o with a .holding orlocking tooth m on a swinging detehtpost or detent M, which is pivotedat its lower end by a pivot-pin m to the trigger-plate and is adapted toswing backwardly and `forwardly in a vertical plane.' The pivot m isshown as secured in an upright standard G3 on the triggerfplate G. Saiddetent Mis provided with mshoulder 'm2,adapted for con-- 'tact with thetrigger-plate in such marineros to limit the rearward or backwardmovement zo of the upper end ofsaid detent. A suitablyapplied spring isarranged in position to move or throw backwardly and thereby hold at therearward limit of its movemenlgsaid detent M, said spring,as hereinshown, lia-ving the form of a coiled spring M which 'is heldiuco'mpression' between .a lug ont-he detent and an opposing snrface ofthe trigger-plate'. Alvlounted on' thevr forward end of thetrigger-blade by meansof a pivot-pin n. is a de 3o tent N,.whiehprojecte rearwardly from said pivot-pin in such position that itsrear end is adapted for'engagement with the pivot j. Said deterit isprovided with o. depending arm N, through which the said detent isactuated.

When the' triggerhlade ieg-.at the rearward limit of its movement, therear end of the said detent is held in au elevated position and abovethe slotj by means of the pivotj. A stop-pin fn is arranged-'on thetrlngewblade 4o in position for contact with the depending arm N2 ofsaid detent N when the rear end of the lotterie in its elevatedposition. A. spring N tends to throwforward the depending arm of thedetent N, so as to depress the rear end of the said detent into positionin front oi the pivot j when the trigger-blade and trigger are at theforward limit of their movement. When the trigger-blade ie att'herearvvard limit of its inovement,.the pivobplh stands 5o ,beneaththe detent and in position'te prevent the descent thereof under thenotion. of the spring N. Provision is made lgor throwing' the' detent Nupwardly or out of its engagement with the pivotj by means of actiiatingconnections operated byapart `which is moved in the act of loading thearm. As shown in the present instance, for the detent is Voperated fromthe snap-le` ver E through the medium of the rod E,whicli 6o is attachedto and inovee with the snap-lever, said rod having connection at itslower end with a shldingr bar H, which sliding bar rests and slides uponthe triggerplate and is adapt ed for contact at its rear end with thedepending arm N2 ol"` the detent. These parte are so larran'gedthat-when the trigger-blade is at itheforward limit of-its movement (atwhich.

and, as herein shown, having',

such 4actuating device .of the baokwardly by the action of thecooking-lee'y enoze time the datent N will be in lp'c'nsition. toerigage the pivot j) the backward 'movement of the rodtH (occurring whenthe snap-lever is moved to unlock the barrels) will result in thedepending arm ofthe detent N being thrust rearwardly and the horizontalarm thereof elevatedto free it from the pivot,- thereby causing rearwardmovement of the trigger-blade and trigger against the action ofthespring J2.

Mounted on the standard G forward of the pivotj is a lever I, having onits' upper end a weight or loaden ball I and adapted for contact at itslower end with the forward-edge of the triggerblade when the Weight isthrown or moved forward. The upper or weighted end of the lever I isheld at the rearward limit of its movement by a suitably-applied spring,herein shown as consisting of the same spring, .lwhioh also acts tothrow or draw forward'thetrigger and triggenblhe. The rearwardmovementof said weighted lever is, however, limited by a stop-pin t',secured in the standard' G' z' in position for contact with the lowerend of said, lever I when its `upper end is at the rearward limit, ofits movement. I O indicates a sliding weight located at the rear of thedetentfldnnd which is herein shown as mount ed to slide in the recess O'in the stock A.. Said sliding weight is held normally at some distancerearwardly from thet detent M by meansjof a coiled 'spring 03, but isadapted below the level of the pivot'l IOO by the yielding of saidspring to he thrown forward egeinst seid datent.

Figs. l,- 3, and fi illustrate the operation of -the parte described intiring the arm, and the action thereof Millie-understood from thefollowing: Fig.l 4 illustrates the position of the parts wlrenthe ugunis ready to be broken, Y.

one barrel having been tired. When the snap-lever E is' pushed to oneside to break the gun, as said 4lever moves it causes the slide-bar H totravel toward the butt-end of the gun. The rear end of said slide-barcomes in. contactwith the depending arm `of the detent Nonthetrigger-blade, so that when the snap-lever is thrown over said bar willpush the said dependingarm of the detent rearwardly, thereby lifting thedetent free from engagement withthe pivot j. As soon as the detent hasbeen released from the pivot the depending` arm of the detent `will bebrought into contact with the stud 'a' on the forward end of thetrigger-blade, and further rearward movement of the slide-bar'will,

IIO

carry said trigger-blade, with the trigger,"

rearwardly until the pivot;- reaches the liront end of the'slotj and theshonlderj2 is brought into position for engagement with and' is engagedby the holding-tooth g on the trigger plate. At the same time that thetriggerblade is thus thrust rears'if'ardly by the action slide-bar thehammers will be thrown vers and the forward ends of the sears will belifted by the scar-springs, while the rear Liv ' arm p' onV the wing P2of the slide-bar.

slot, and receives said rib p, as clearly seen in Fig. 6. Au operatingdevice is provided by which said bar, with its wings, can be actuated orslid endwise in the trigger-blade by means operated from the outersurface of the breech-frame The actuating device illustrated is locatedon the side of the frame and consists of a slide Q, similar to theordinary safety-slide and having an in.vardlyextcnd ing forkedprojection q, which engages an The fork q of the slide is extendedvertically or made of considerable depth, as seen in Fig. 6, so that itwill retain its engagement with the arm p' in the vertical movement ofthe trigger-blade. Assuming the laters-tlly-pro- 'jecting parte orwinigs on the slide-bar to be `onesixteenth of an inch thick, when theslide Q is pushed forward and the run is in readiness for firing thesearoi the rightdiand barrel will be one-sixteenth of an inch above ,theright tiring-lug', whilethel left-hand sear will "ne" in contact withthe left-hand wing P, which Ais over the left-hand stationary lug. Thisis the position of the parts shown in the drawings. Now if the triggerbe operated first the left and then the right hand barrel will be red.It, however, the slide Q be pushed rearward, the wing P2 will be carriedover the stationary lug K', and a space of one-sixteenth of an inch willthen exist between the left-'hand stationary lugand the left-hand scar,while the right-hand sliding wing Pwil bein contact with the rightehandscar. lf the trigger now be pulled, the righthand barrel will he firstfired, its scar being lifted 'oy the action of the movable wing, whichrests over the right-hand firing-lug. When the trigger is again pulled,the lefthand barrel will be fired, its Sear beingT lifted by cont-acttherewith of the left-hand dringlug.

In Fig. l of the drawings l have shown a safety catch or detent adaptedto engage the trigger-blade when it is desired to lock the same frommovement to preventthe gun from being fired. Said safety-catch isconstructed as follows: R indicates a slide or thumb piece mounted onthe top ot' the tang and provided with a. stem fr, which passes througha longitudinal slot in said tang and vis provided with a cross-pin r' tohold it from rising out of said slot. S indicates a sliding bar, whichrests in contact with and slides upon the under surface of the tang andis provided'with a depending projection s,- adapted for 'contact withthe top surface of the trigger-bladewhen the slide S is thrust forward,but which is free from said blade when the slide is retracted. Saidslide is herein shown es being heldin contact with the top of the'tangnya headed screw s', which passes through a longitudinal slot in thesaid slide. The rear end. or portion S' of the slide S is maderelatively thin and oi' resilient metal, so that it constitutes a' sprinThe rearextremity of the said springarni S' connected with. the lowerend ofthe ceaseslever S2, which lever is pivoted between its ends by apivotfpin s2 in the slot of the tang, so as to swing in a verticalplane. The up-V per end of said lever is connected, by means of a linkR', with the stem r of the slide R. 'Fliese parts are so arranged thatas the lever S2 is moved or swung on its pivot by the movement of theslide R the rear end of the spring arm S will be depressed when theslide is at the central part of its movement, such depression beingpermitted by the resiliency of the spring-arm S'. The upward pressure ofsaid springer-m, however, tends to hold the lever S2 and the slide fr atthe frontward or backward limit of movement of said parts. It followsfrom this construction that the safety-slide is adapted to automaticallylock itself in its forward or, rearwardmost position, while at the sametime the slide can be easily moved or shifted. When the safetyi slide Ris pushed forward, the trigger is free. `When pushed. back, the triggeris blocked.

So far as the 'operation of the devices for changing the order of firingthe barrels is convcel-ned the operation of said devices will be thesame whether the part herein called the trigger-'blade be rigidlyattached to the trigger or whether it have a limited movement withrespect to the trigger, as is the case with the )firing-plate shown insaid prior application hereinbefore referred t0.

i. The combination with a plurality of locks roo and their sears, of atrigger having a rigdlyattached, rearwardlyextendingtrigger-bladeprovided with a detent-arm, said trigger-andy its blade being pivoted lothe frame and being:r longitudinally movablethereon, a tooth on theframe adapted for engagement with said detent-arm, a spring acting onthe trigger and its blade in a direction to throwthe same forward, meansengaging the triggerblade when the same is in its rearward and lowermostposition to restrain it from forward' movement under the actionV of Saidspring, holding,` means acting` on the trigger-blade to hold it in itsforward position after the dis-1 charge of thc first barrel, and meansactuated by-he movement ol the parts in loading the arm, acting torelease the last-mentioned holding' means and to throw rearwardly t0their initial position the trigger and triggerloiade.

2. The combination with aplurality oflocks and the sears thereof, ofasi-nele trigger hav;- inc a rearwardly-extending, rigidly-attached"\x`trigger-blade provided with a detent-arm ,said trigger and blade beingpivoted to the frame and being movable longitudinally.thereon, a toothon the frame adapted for engagement with said detent-arm, a spring,rapplied tothe triggerblade to throw the same forward, a holding-tooth.adapted to hold the triggerand trigger-blade at the rearward limit oftheir movement against the action of said spring, a detent adapted torestrain the trigger and trigger-blade' from rearward movement unleo emoved in the act of loading the arm and which acts on saiddetent torelease the trigger-blade and also on the blade, to move the same andthe ,Ltriggerrearwardly to their initial position. i 3. The combinationwith alplirality of locks (and the nears thereof, oi a singletrigger-having a rearwardly-extending rigidly-attachedtrigger-blade,provided with a deten t-arm,ead triggerv and triggerbladebeing pivoted to the frame and being movable longitudinally thereon, atooth on the frame adapted to engage said detenta-arm, a spring appliedto throw forwardthe trigger and trigger-blade, a holding-tooth in theframe adapted to engage the trigger-blade when in its lowermostpositionand hold the same and the trigger from forward movement underthe action ot said spring, a movable detent adapted to hold the triggerand trigger-blade at The forward limit of their movement in firing thesecond barrel, a rod which is moved in :the act of loading the arm andwhich acts on said movable detent and also .on the trigger andtriggerlade to thrust the latter rearwardly lo their initial position,and a lever provided with a weight and acting on the trigger-blade tohold the same from forward movement at the time of the involuntary pull.

4. he combination with a pluralityoflocks and the sears'thercof, of asingle trigger having al;rearwardly-extending, rigidly-attachedtrigger-blade, provided, with a detent-arnn,` 'said triggerand itsbladebeing pivoted to the frame and being also movable longitudinallythereon, a pivoted, spring-actuated detentpost -on the frame, a springapplied to throw forward the trigger and its blade, a holdingtoothadapted to engage the trigger-blade when the latter is in its rearmostand lower- 'most position, e detent adapted to retain the trigger andits blade at the forward limit of its movement under the pull on thetrigger anda rod which'is moved in the act of loading the arm and whichacte on said detent and also on the trigger-blade to throw 'the latterand the trigger rearwardly.

5. The combination'with a plurality of locks and the sears thereof, of asingle trigger having a rearwardly-extending, rigidly-attachedtrigger-blade v'prtwided ,with a detent-arm,` Said trigger' andits'hlade being pivoted to the frame and being also movablelongitudinally thereon, a pivote'd, spring-actuated detentpost on theframe, a movable weight adapted for contact with said detent-post, aretraotingspring for said weight, a spring applied to throw forward thetrigger and its blade, a holding-tooth adapted to engage thetriggerblade'when the latter is in its rearmost 'and lowerinostposition', a detent adapted to retain the trigger andits blade at theforward limit ot" their movement und er the pnll on the trigger, and arod which is moved in-theact of loading the arm and which aeteon saiddetent 'and also on the trigger-bl ade to throw the latter and thetrigger rearwardly.

6. The combination with a plurality of looks and the sears thereof, ofya single trigger having a rearwardly-extending, rigidly-attachedtrigger blade provided with a deten'tarm, said trigger-blade beingprovided with a horizent-al slot through which passes a pivot connectingthe same with the frame, a detent pivoted on the trigger-blade inposition to engage the said pivot when the blade and trigger are at theforward limit of their movement, a tooth on lthe frame, adapt-ed' forengagement with said datent-arm, a spring applied to throw forward thetrigger and blade, a holding-tooth adapted to engage the blade whenv thelatter in in itsirearmost and lowermost position, and a rod which ismoved in the act of loading the arm and which acts on the pivoted detentto release the saine from the pivot and which also acts on thetrigger-blade to throw the latter and the trigger rearwardly.

7. The combination with a' plurality of locke and the sears thereof, ofa Single trigger having a rearwardly-extending rigidly-attachedtrigger-blade provided with a detenta-arm and with a horizontal slotthrough which passes a pivot connecting said blade with the frame, aspring-actuated detent pivoted tothe triggerblade in position to engagethe pivot when the trigger-blade ie at 'the forward limit of itsmovement, said. detentbeing provided with a depending arm, a tooth onthe frame adapted to engage said (intent-arm, a spring applied to throwforward the trigger-blade and trigger a holding-tooth adapted to engagethe trigger-- bladewhen the latter is in its rearmost and lowermoetposition, and a rod which ie moved in the act of loading and which acteon said roo f arm of the detent to release thelatter'from the. l

with a horizontal slot' in its forward part n through which passes apivot by which the trigger-blade is connected with the frame, saidtrigger-blade also having at ite lower margin near its rear end aforwardly-facing shoulder, a holding-tooth on the frame adapt ed forengagement with said shoulder on the trigger-blade, a spring-actuateddetent mounted on the trigger-blade in position to engage the said pivotwhen the trigger-blade is at the forward limit of' its movement, aspring applied to throw the trigger-blade forwardly, and a rod which ismoved in the act of loading the arm and which acts on saiddetent andalso on the trigger-blade to throw the latter and the triggerrearwardly.

9; The combination with aplnrality otlocks and the sears' thereof, ofA aSingle trigger, a rearwardly-extending trigger-blade which is liftedwhen the trigger is pulled, said triggerblade being provided withlaterally-extending .is pulled, of-:i

rigidlyatrached firing-lugs, a, slide-bmwhich slides n a groovedisposed' longitudinally of the trigger-blade, and provided with lateralfiring-Wings, arranged one in advance of the other, and means for'actuatingsaid sliding bar from the exterior of' Lheframe.

10. The combination with a trigger anda' triggeriblade, which is liftedwhen the triggery safetylocking device comprisim:` a lide-bar providedwith a. spring-arm, o slide on the frame and a lever pivoted to the y A.D. 1899. 4 ALLAN EDWARD LARD.

Witnesses:

J. L. WooDsoN, .J. W. PETERSM*

